Electrically insulating locking insert for a seal, corresponding seal, and method of manufacturing such inserts
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United States of America Patent
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Jul 8, 1997
Grant Date -
N/A
app pub date -
Mar 20, 1995
filing date -
Jul 23, 1993
priority date (Note) -
Expired
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Abstract
A locking insert 4 for joining the male and female ends of spheroidal-graphite cast-iron pipes conveying fluids under pressure has a generally planar shape, and includes at least two metal parts 4A, 4B fixed to each other by an electrically insulating junction layer 4C.
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